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Java
4,626 repositories · 183,296 stars · 64,435 forks
─── top repos · by stars
✨ 开源、免费、一站式 Java 权限认证框架，让鉴权变得简单、优雅！—— 登录认证、权限认证、分布式 Session 会话、微服务网关鉴权、SSO 单点登录、OAuth2.0 统一认证、jwt 集成、API Key 秘钥授权、API 参数签名
Cryptomator for Windows, macOS, and Linux: Secure client-side encryption for your cloud storage, ensuring privacy and control over your data.
Tink is a multi-language, cross-platform, open source library that provides cryptographic APIs that are secure, easy to use correctly, and hard(er) to misuse.
Lightweight Java and Android library for integration with Ethereum clients
Your go-to microservice framework for any situation, from the creator of Netty et al. You can build any type of microservice leveraging your favorite technologies, including gRPC, Thrift, Kotlin, Retrofit, Reactive Streams, Spring Boot and Dropwizard.
:honeybee: IoT Technical Guide --- 从零搭建高性能物联网平台及物联网解决方案和Thingsboard源码分析 :sparkles: :sparkles: :sparkles: (IoT Platform, SaaS, MQTT, CoAP, HTTP, Modbus, OPC, WebSocket, 物模型，Protobuf, PostgreSQL, MongoDB, Spring Security, OAuth2, RuleEngine, Kafka, Docker)
Bitcoin Wallet app for your Android device. Standalone Bitcoin node, no centralized backend required.
Java implementation of the Tron whitepaper
XChange is a Java library providing a streamlined API for interacting with 60+ Bitcoin and Altcoin exchanges providing a consistent interface for trading and accessing market data.
Ultra-fast matching engine written in Java based on LMAX Disruptor, Eclipse Collections, Real Logic Agrona, OpenHFT, LZ4 Java, and Adaptive Radix Trees.
DEPRECATED! Java implementation of the Ethereum yellowpaper. For JSON-RPC and other client features check Ethereum Harmony
Desktop Bitcoin Wallet focused on security and privacy. Free and open source.
An enterprise-grade Java-based, Apache 2.0 licensed Ethereum client https://wiki.hyperledger.org/display/besu
The best Java open source crypto currency exchange platform, bitcoin exchange based on Java | BTC exchange | ETH exchange | digital currency exchange | trading platform | matching trading engine. This project is based on the development of Spring Cloud microservices and can be used to build and secondary development of digital currency exchanges. It has a complete source code for matching trading engines, back-end management (back-end + front-end), front-end (transaction page, activity page, personal center, etc.), Android APP source code, Apple APP source code, currency wallet RPC source code. Contact Email: 877070886@qq.com
QuickFIX/J is a full featured messaging engine for the FIX protocol. - This is the official project repository.
OBAndroid is a self-custodial OmniBOLT Lightning wallet for android devices. It provides a platform for simple, instantaneous Bitcoin/Omnilayer asset payments
Bitcoin Wallet strongly focused on privacy when transacting on the bitcoin network
Highly-available version-controlled service configuration repository based on Git, ZooKeeper and HTTP/2
Create your Java crypto trading bot in minutes. Our Spring boot starter takes care of exchange connections, accounts, orders, trades, and positions so you can focus on building your strategies.
Bee is an AI, easy and high efficiency ORM framework,support JDBC,Cassandra,Mongodb,Sharding,Android,HarmonyOS.
开源数字货币合约交易所，基于Java开发的比特币交易所 | BTC交易所 | ETH交易所 | 数字货币交易所 | 交易平台 | 撮合交易引擎。本项目有完整的撮合交易引擎源码、后台管理（后端+前端）、前台（交易页面、活动页面、个人中心等）、安卓APP源码、苹果APP源码、币种钱包RPC源码。开源项目仅供学习参考，请勿用于非法用途
这个仓库收集了所有在 GitHub 上能找到的 CVE 漏洞利用工具。 This repository collects all CVE exploits found on GitHub.
FIDO2(WebAuthn) server officially certified by FIDO Alliance and Relying Party examples.
这是一个轻量级的、一站式的java游戏服务器框架，也可用于开发简单的web服务。基于netty实现了高性能通讯，支持tcp、http、websocket等协议，支持protobuf、json两种数据格式，支持以配置的形式轻松开启多端口网络服务。支持RPC远程调用，支持以优雅的方式实现远程调用，支持调用超时重试、幂等调用。封装了持久化层，提供数据访问和数据落地接口，支持异步新增、保存、删除数据，支持主键或指定其他字段进行数据缓存。支持简单的ioc，业务层使用依赖注入实现逻辑。封装了伪协程实现方案Promise，可用于解决地狱式回调等问题。支持MVC、领域、ECS架构。
A resilient Ethereum event listener that bridges your smart contract events and backend microservices
Capillary is a library to simplify the sending of end-to-end encrypted push messages from Java-based application servers to Android clients.
Coin Trader is a Java-based backend for algorithmically trading cryptocurrencies. It provides data collection and export, complex event processing and triggering, and backtesting - paper trading - live trading.
后端使用 SpringCloud Alibaba 开发，移动端使用 React Native 构建，管理后台使用 Arco Design 进行构建，并在支付上接入数字货币（比特币、以太坊UDST、平台Token）支付，后端采用 Hadoop 与 Flink 等大数据框架构建实时计算与离线计算体系。
XChange-stream is a Java library providing a simple and consistent streaming API for interacting with Bitcoin and other crypto currency exchanges via WebSocket protocol. It is build on top of of XChange library providing new interfaces for streaming API. User can subscribe for live updates via reactive streams of RxJava library.
Trust - Ethereum Wallet for Android (Inactive Repository)
Crypto, token, consensus, file, and smart contract services for a Hiero based network
A Java library for technical analysis ***Not maintained anymore, kept for archival purposes, see #192***
!!DISCONTINUED! DO NOT USE ANY MORE!! [A beautiful, secure and native Ethereum Wallet for Android]
[Archived old experiment] IPFS and libp2p on Mobile, with Gomobile. See https://docs.ipfs.tech/concepts/ipfs-implementations/ instead.
Hyperledger Fabric Contract and Chaincode implementation for Java
The core components of the blockchain wallet backend, support a variety of blockchain address generation and offline signatures
A mobile application wrapping XLArig to enable mining on Android devices.
A shared preference implementation for confidential data in Android. Per default uses AES-GCM, BCrypt and HKDF as cryptographic primitives. Uses the concept of device fingerprinting combined with optional user provided passwords and strong password hashes.
Create and Deploy a Blockchain Network using Hyperledger Fabric SDK Java
The Meeds Association provides its members with an employee recognition software implementation. The employee recognition software is fueled by the Meeds ERC-20 tokens.
Web3Signer is an open-source signing service capable of signing for multiple platforms (Ethereum consensus and execution clients) using private keys stored in an external vault, or encrypted on a disk.
Our Javacard Implementation for making secure transactions within Status and Ethereum
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